Техническая Спецификация для Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK

 510

SAM9M10 [DATASHEET]

6355F–ATARM–12-Mar-13

During header transmission, all the bits of the IDCHR field of the LIN Identifier register (US_LINIR) are sent on the
bus. 

During header reception, all the bits of the IDCHR field are updated with the received Identifier.

In function of the identifier, the node is concerned, or not, by the LIN response. Consequently, after sending or
receiving the identifier, the USART must be configured. There are three possible configurations:

• PUBLISH: the node sends the response.

• SUBSCRIBE: the node receives the response.

• IGNORE: the node is not concerned by the response, it does not send and does not receive the response.

Example: a LIN cluster that contains a Master and two Slaves:

• Data transfer from the Master to the Slave 1 and to the Slave 2:

NACT(Master)=PUBLISH

NACT(Slave1)=SUBSCRIBE

NACT(Slave2)=SUBSCRIBE

• Data transfer from the Master to the Slave 1 only:

NACT(Master)=PUBLISH

NACT(Slave1)=SUBSCRIBE

NACT(Slave2)=IGNORE

• Data transfer from the Slave 1 to the Master:

NACT(Master)=SUBSCRIBE

NACT(Slave1)=PUBLISH

NACT(Slave2)=IGNORE

• Data transfer from the Slave1 to the Slave2:

NACT(Master)=IGNORE

NACT(Slave1)=PUBLISH

NACT(Slave2)=SUBSCRIBE

• Data transfer from the Slave2 to the Master and to the Slave1:

NACT(Master)=SUBSCRIBE

NACT(Slave1)=SUBSCRIBE

NACT(Slave2)=PUBLISH